The London Improvathon 2014

Now in its seventh year, the annual Improvathon features 50 hours of continuous impro, music and performance from 25 actors and 30 guest artists. For those prepared to go the whole hog, a 50-hour pass is on sale. Or if you'd prefer to pop along for an hour or two, tickets are available for each episode (105 minutes). The show runs from 7pm on Friday January right through to 9pm on Sunday January 26.